IT ContactDetails have Email and Phone None

[skinkie]

This causes bad conversions and GTFS validation errors.

            <Operator id="IT:ITC1:Operator:05403151003:trenitalia:43:op:1" version="20250117">
              <Name>TRENITALIA</Name>
              <ShortName/>
              <ContactDetails>
                <Email>None</Email>
                <Phone>None</Phone>
                <Url>http://www.trenitalia.com</Url>
              </ContactDetails>
              <OrganisationType>operator</OrganisationType>
              <Address id="IT:ITC1:Address:trenitalia:1" version="20250117">
                <CountryName>Italia</CountryName>
                <Street/>
                <Town/>
                <PostCode/>
              </Address>
            </Operator>